HOUSTON (KTRK) -- A mother and father are facing child endangerment charges and a local rapper is under arrest after a wild night at a Washington area nightclub. It all happened around 2am at the Nox Bar on Nett near Parker in the Heights area. Police say a group was fighting in the parking lot, but they were eventually allowed into the club. Police went outside to investigate and discovered a weapon and ski mask in the back of one car. They went inside to tell the bar owner and to pull that group out of the club. In the process, they discovered yet another weapon. While investigating, police also found two small children sleeping in the back of another car, seeming left alone as their parents were in the club.The parents in custody are facing charges of child endangerment. The officers brought food for the children, who woke up and were hungry, while they called welfare authorities. The local rapper will be charged with possession of a weapon.